Tractor



A ril 2, 1940. P. B. DREISBAUGH TRACTOR Filed April 3. 1939 2 Sheets-Sheet 1 IN VENTOR. PEPE) 5 OPE/$540 April 2, 1940. DREISBAUGH 2,195,481

- TRACTOR Filed April 3, 1939 2 Sheets-Sheet 2 Z? pi I: 4/ 40 f 54% I I 51? 2 I [If 46 45 X7 4 I 5/ 4 V 4 f l g J I 56 1 HM! I I! I 57 55 IIIHHIL I II I I 1 Q HII e v 53/ I 22 i J! H 51 5,2

7 15 Th m ll 56-3 A I I W7/// //////////////77 1N VENT OR.

P57??? 52 DRE/$51406 BY ATTORNEY.

iPatented Y I l I This invention relates to'tract'ors of that type 1 FigureZ is a side elevatio a1 view of that shownemployed in the cultivation of soiland has for its in Figure '1: i v 9 1 y object to provide a tractor of improved construc Figure 3'is ,atransverse sectional viewtaken on tion far superior inxhandling and efli ciency to line 3-.-.3 of Figure Ziand'showing theitransmis 5 thoseat present ,availablei j) I SiOII-l j 5 Atthe present time the large type of power Figure 16-5 a verticalfsectional vview taken-onv driventractor used on the'tarm is 0f course effij-J 'linel ie fi 3 d Showing r h detail I cient for its int'endedjpurpose: -While it covers a ofthetransmissiom I lot of ground it requires ,lots .of space'zso that it In thedraw illustrated a ra t r .10 may beturned around at the endnofeach run: body g t e. p se invention an Wh le the onsmall truck farms. 1

Furt-hermorehecause of its great size' it isvex'penjv tractor s Pa i y a p d for :u v111' q sive to purchaseandthereby unavailable to many. houses or on. sm l f m h .nOVel i l e may' I farmers. Additionally becauseofits jsize'it is an well b adapt di ther m d ments as will b impracticable implement for use in vhoth'ouses or 1 well recognized by those skilled in the art. The

For .the .latterithereaisaveilablesmall hand Wheels t suitab y p ed ap rt a d connected y pushed eultivatorsutili d because oftheir small a r s ax e i su h-a nn t atth .aixl e size and conveniencebut these lack sui'ficient rotates With t e Wheel-8 The wheels wi h Q Weight and the ability topproduce a' satisfactory p e n s a e r of h Well known Pn u a job. Despite the lightness-of'these Cultivators, it ied ype b t, they y o e oilh .20, I q es efiort in 1ciushing themthusresulting in O TEnS, e A v fatigue-to the operator. V-

7 4 e f ":If e tra t t Wi e in h l '2 the nne One of theobjects of-the present invention-is nd whi i n ov ded w t a pai o bifu a e therefore to provide asmall compact motor oper'- rm I di p ed n se paQe e a ionwith ree g5 ated tractor particularly adapted for use in note pec-t t t e d ce tir the mis of the e house or on smal1.:.truck farms; 1 v arms av n li d even n s orrotatab y w' "Another object of theipresentinventionis to n 'thehi eIL. -Byp .dt lym un theha provide a'tractor capablev of operation inopposite 11? 2 UDO l thC xl L w be p a t' at directions withoutthe necessity for turning bodily, the trac may be moved 0H6 lr fi i i a F at'the end of the run thus pr'oviding traotor par- 7 shown F ilres 1 andj*2- w heh n l in i so ticularly desirable for hothouse;use. 1:; i re ti e iti e n a op os tesi e ti nwa Another object of thepresent invention, is alto. H nqica by the dotted lines of the: handle in provide thetractor witha euidihgheridle ivoted Fi u e rwit u e net l h n t rne for movement to either endof the tractor "de' the t at or ar u d a t ah t a ax s: This] pending upon the direction of travel. v. feature mlqo ie d da n ae ve the Yes I Another object of therpresent' nvention is to gi pfi of ii l a ab making it i l' l fi i y utilize the pivotal movement of the "handle for usefu i hothousesrwher Spacev is a p m m automatically reversing t e power drive at-the end eQ c th tractor should be o d w th of the run. 2; x v of out 12 ul a in tsiQ1s 1a th m b 40 Afstill further object ,oftheinvention is to' moun ed iii-any desirable mannerbutprefelfably 4 mount the cultivating steels or'tools on the handle vb rq d n .3 i m hi ram CQ S S S e in such a manner that they will properly enga e f. Pai O fia 1 F815 a d 'd q e ns-- the ground for cultivation, during movement #01 e s c ut r ly. from t tires and n, spaced the tractor in either direction. 1 01? ve n lq h 5 Th5i19 5 A still further object r the invention'is to proa -c ected o e h a th ir o p en -th 45' 113 the: res ntti t tion I arcuate shaped strap members ,l'L-the vide a tractor -;of. the {type referred to which is simple in construction; efficient in operation-and it t. M orgothervvise w relatively inexpensive to manufacture. 1 i r d he adise ba .1.. sa res lea ly Withthe objects-above indicated and, ther ob shq n n.- iei 'TQ s ur h ra l h 50 jects hereinafter explained in View, myinvention andle ze-f hfi S rap 1 1 73 1 61 i a il 61 3 t 50 nsists, i ithe' construction n m n t o o it)? Otherwi e s cu ed h ad e tm t m elements-hereinafter described and claimed. v of the arms l3 to provi a rigid r l tru tpis- Referring to the drawings; A cultivating toolssuch as shown at 2i! have Figure. -1 a an i o a ra q t mhq sis eii ip si i l t e nn r ends Q which r b lte ore ther is?sec red.toz iehdit ent bani hed to tractor-comprises a pair .Qi ground engaging 1.5 r v i I5. The tools 20 are so positioned with respect ,to the handle I2 that when the tractor is moved in the direction of the arrow, as indicated in Figure 2, the tools enter the ground and affect a suitable working of the soil depending, of course, upon the type of tool attached. These tools are also removable and interchangeable so that different tools may be used in subsequent operations as is required in the cultivation, of soil. A duplicate set of tools is also mounted at the opposite end of the frame so that when the tractor is moved in a reversed direction to that shown in Figure 2 the tools'will be available and in proper position for engagement with the soil.

So far no mention has been made of any means for driving the tractor and, while various means may be adopted, the use of a small fuel engine is The engine preferably is of a well known standard'type-rangingfrom to 2 horse power predeterminatelyj selected depending upon the work-to be done. I

particularly advantageous.

The engineindicated generally by, the numeral 22 preferably has a throttle governor to maintain constant speed regardless of load and also includes a housing 22 enclosing the well known power driving mechanismffor imparting rota tion to adrive shaft 23rotatablym ounted in the housing. The housing 22 is disposedabove the axle III but connected to the latter without interfering'with its. rotation in either direction.

; A transmission housing 24 of box like shape is normally open at its upper end and disposed between the end of the engine housing 22 and ,the outer-adjacent arm I3, the side walls of the housing 24 being provided with aligned openings through which the axle II extends and within which it is free to rotate in either direction. The

' adjacent walls of the housings 22 and 24 are preferably connected by means of welding but may be con'nectedin any other desirable manner so as to affect a unitary structure." An input drive shaft 25 extends longitudinally of the housing 24being "disposed above the axle and hay-- ing its opposite ends rotatably mounted in-the end walls 26 of the housing, as, more clearly shown in Figure 4. The forward end of the shaft I 25 projects outwardly beyond jthehousing and" has awhe el 21 securely mounted thereon, the outer periphery of whichis V-shapedtogreceive one'portion of a V drive belt 28 which hasits other portion disposed 'in a similar V-shaped. groove in a drive wheel '29 secured upon the end I of the engine drive shaft 23. In this manner,

power is imparted from the engine drive shaft 23 to the input shaft of the transmission.

' transmission driven .shaft 30 is disposed.

transversely within the housing 24 in parallelism with the axle II but disposed rearwardl'y'th'erefrom, and has its opposite ends rotatably mounted in the adj acent sidewalls of the housing, as more clearly shown in Figure 3. The shaft 30 has an external gear3l mounted thereon and keyed or otherwise secured for rotation therewith and disposed directly under the shaft 25. The shaft 25 has a worm 32 mounted on the shaft 25 and keyed thereto for positive rotation therewith, the

worm being adapted for engagement with the gear 3'I whereby, upon rotation of the shaft 25 'inthe direction indicated by the arrow, the worm will effectrotation of the gear 3 I in the direction indicated by the arrow and shaft'30. g "To impart rotation to the axle II an external gear 33 is' rigidly mounted on the driven shaft 30 a positive rotation of the to one side of the gear 3| and meshes with an ing clutch-teeth 31 and 3a which drivingly connect the gear 34 with the clutch 35 and through thelkeys 36 with the axle I I. Therefore, the rotation imparted to the driven shaft 30 is imparted v to the gear 33 causing the latter to rotate in the direction indicated by the arrow which in turn imparts rotation to the external gear. 34 in a reverse direction as indicated bythe arrow and through the cooperating teeth and clutch to the axle II which is rotated in the direction indioatedby the arrow, thus propelling the tractor ma Ward direction asindicated; by 'the arrow inFigure 2'.

In order to .reverse thedirection of-movement of the tractor, and,'there fore,"the direction of rotation of the axle II, the transmission driven shaft 30 has a sprocket wheel 39 mounted thereon for positive rotation therewith anddisposed upon the opposite side of thegear 3I'.

from one to the other but in a direction opposite 'to that which is imparted from the external gear 33 to the external gear 34. The clutch 35 and the adjacentface of the sprocket wheel 40 likewise have cooperating clutch-teeth 4'2 and.

A sprocket Wheel 4Il-of larger diameter-is loosely mountedupon the axle and bothv of the sprockets are connected by a chain for imparting rotation 43, and when the clutch is moved along the axle ,the engagement of the clutch teeth resultsin' imparting rotation to the clutch in the direction in'. which the. sprocket wheelis rotating, this ofcourse, being in a reverse direction to that imparted to the clutch through its engagement with the external wheel 34. Sufficient space-is provided:

between the clutch teeth31. and the clutch teeth x 43 so as to offer no interference with the engaging positions of the clutch. v 3

Any suitable means, may be employedfor shift-. mg? thenclutch'fiom 'one position to the other but it hasbeen found'quite desirable to employ the handle I2, this being due to the fact that the handle I2 is pivoted for movement about the -axle i'll. This movement-of the handle from one position .to the other very, eflfective for shifting the clutch from engagement with the gear'34 to engagement with the sprocket wheel 40 and vice versa. A" shifter fork is disposed within the transmission housing-24 and includes a vertically disposed rod 45 having its opposite endsirotatably mounted inithe bottom andtop walls 'ofthe housing. A pair of laterally extending arms 46 projectinwardly on opposite sides of the clutch 35 and the free' endshave inwardly projecting lugs 41 which are disposed within a circumferential groove 48'to permit free relative rotation but cooperating for effecting movement of the clutch along the axle either direction. I i y The upper end of the rod 45 projects vertically beyond the cover and one'en'd of an arm 49 is securely connected thereto" for effecting movement of the rod 45 about its axis. The arm; 48 is laterally disposed' n'd'"its" -free end projects beyond the outer side of the housing, as more clearly shown in Figure l. -A belI crank 5|"is connecting said Qtfolithei V rc'onnected tosaid axle and swingable to be in a following position with respect to the direction of travel ofsai'd" tractor, a tool supporting frame I "connected to said handle for movement theremtwane cultivating tools mounted at diametrically -op'posite"portions of said frame and selec- =tivelyengageable with-the ground depending 'upo thedirection of travel of said tractor.

disposed ut-501i the s'ide' wail f "the eating "and pivotally connected thereto fat 52'. The upper end 5-3- of the bell crank'engages "the free end of'the arm 49 while the mw'er'ena 54 is'jposit'ioned so as to be engaged by a 'pin 55 on the'iadja'cent arm 13 for swinging the bell i crank 5| 'abo'ut 'its pivotal axis as the handle 12 is moved fro'm'one end, of the tractor to the otherand backa'gain Itwil'l-be noted thatthe swinging of the handle l2 from one position to the other effects a reversal of the direction of travel of the tractor and that movement of the tractor in either direction may be interrupted or started by raising or lowering the handle l2 a sufiicient distance so as to disengage or engage the clutch teeth and the cooperating gear or sprocket.

To prevent the engine and transmission housings from rotating about the axis of the axle, any suitable means may be provided but in the drawings a roller arrangement is shown consisting of astrap iron 56 welded or otherwise secured to the under side of the engine housing about midway between the wheels ID. The strap iron has its opposite ends bent downwardly wardly to receive a pair of rollers 51 swivelly connected at 58 and positioned so as to normally engage the ground on opposite sides of the axle H.

In the operation of the tractor with the engine started in the usual manner and the handle in a downward position as shown in Figure 1, the tractor will be propelled forwardly in the direction of the arrow shown in Figure 2, the tools 20 turning the soil in a manner desired. At the end of the run to reverse the direction of travel ofthe tractor, the handle I2 is swung around the axle l l to the position shown in dotted lines in Figure 2.

This shifts the clutch 35 from engagement with' the gear 34 into engagement with the sprocket wheel 40 which effects a reverse drive of the axle H and, consequntlm'movement of the tractor in the opposite direction. The movement of the handle l2 into the position shown by dotted lines in Figure 2 also places the cultivating tools in a position for working the soil effecting a return of the tractor without having had to turn the tractor about a vertical axis which is characteristic of the types now available and of which this tractor is a decided improvement.

While I have described the preferred embodiment of the invention it is to be understood that I am not to be limited thereto inasmuch as changes and modifications may be resorted to without departing from the spirit of the invention as defined in the appended claims.

' What is claimed is: s

1. A power propelled cultivating tractor comprising a pair of ground engaging wheels, an axle wheels for unitary rotation,

means for selectively imparting rotation to said axle in one direction or the other for effecting movement of the tractor in opposite directions,

a steering handle having its inner end pivotally connected to said axle and swingable to be in a following position with respect to the direction of travel of said tractor, and a pair of cultivating tools movable'with said handle and selectively engageable with the ground depending upon the direction of travel of said .tractor.

2. A power propelled cultivatingtractor comprising a pair of ground engaging Wheels,' an

axle connecting said wheels for unitary rotation,

means for selectively imparting rotation to said axle in, one direction or the other for effecting movement of the'tractor in opposite directions, a

steering handle having. its inner end pivotally prisin and outmovement pdwer ropelled cultivatin tractor @0111" followi g position with respect to the direction of a pair of ground. engaging wheels, an axle connecting saidwheels for unitary rotation,

travel of said tractor, the direction of rotation of said axle being controlled bythe swinging movement of said handle, and a pair of cultivating tools movable with said handle and selectively engageable with the ground depending upon the direction of travel'of said tractor.

4. A power propelled cultivating tractor comprising a pair of ground engaging wheels, an

axle connecting. said wheels for unitary rotation,

a transmission operatively connected to said axle for imparting rotation to the latter in one direction or the other thus effecting movement of the tractor in opposite directions including a clutch drivingly connected to. said axle and selectively movable for efiecting positive rotationof said movement of the latter whereby-said axle is rotated in one direction or the other depending uponthe relative position of said handle, and a pair of cultivating tools movable with said handle and selectively engageable with the'ground deprising a pair of ground engaging wheels, an

axle connecting said wheels for unitary rotation,

a transmission operatively connected to said axle for imparting rotation to the latter in one direction orthe other thus efiecting movement of the tractor in opposite directions including a clutch drivingly connected to said axle and selectively movable for effecting positive rotation of said axle, a steering handle having its inner end pivotally connected to said axle and swingable to be depending upon the direction of travel of said tractor.

6. A power propelled cultivating tractor comprising a pair of' ground engaging Wheels, an axle connecting said wheelsfor unitary rotation,

,an engine supportedon said axle and disposed between said wheels, a transmission supported on said axle and disposed between said wheels, said.

in a following position with respect to the direc- I engine and transmission being drivingly connected to said axle for imparting rotation to the latter in one direction or the-other thus effecting movement of the tractor in opposite directions in- .cluding a clutch drivingly connected to said axle andselectively movable for effecting 'positive rotation of said axle, a steering handle having its inner end pivotally connected to saidaxle and swingable to be in a following position with respect to the direction of travel of said tractor,

clutch for efiecting mmpvement of the latter whereby said axlelis} rotated in one direction or the other depending upon the relative position of said handle, and-a, pair of cultivating tools movable with "said handle and selectively eng'ageable with the ground depending upon the direction of travel of s aidtractor n l l B. DREISBAUGH. 

